Net Tools - Subnet Calculator

Net Tools

Subnet Calculator

It calculates Network address and Broadcast address, Default gateway, First and Last usablle mask adress - based on an IP address and a Subnet Mask.

Enter your values

IP Address	- Enter here your IP adress
Subnet Mask	- Enter here your Subnet Mask
Ethernet Address	- Ethernet adress (route to your subnet)
First Usable Adress	- By defaul this is a Gateway. Must be specified in TCP/IP
Last Usable Adress	- This is your last IP adress, possible gateway: depends on ISP
Broadcast Adress	- Broadcast IP - please don't use this one in TCP/IP

IP Ranges Reserved for Internal Use (Private Networks) :
	Starting IP Address	Ending IP Address	Subnet Mask
Class A	10.0.0.0	10.255.255.255	255.0.0.0
Class B	172.16.0.0	172.31.255.255	255.255.0.0
Class C	192.168.0.0	192.168.255.255	255.255.255.0

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